Whats up. 

A simple greeting. Another way to say hello.

Two people are walking down the street.
Person A: Whats up.
Person B: Whats up.

Whats up. by crakajack007 March 30, 2009

Whats Up? 

What is happening wiht you, How are you, whats going on?
Something that LouAnn doesnt understand.

Usual response: Nothin Much
**Do not reply 'HI' or with another 'Whats Up'**

A common phrase that most people understand & use each day.

Carl: Hey Dude
Mark: Hey Whats up?
Carl: nothin much
Mark: Cool

Whats Up? by Ednabrowneye13 January 17, 2009

whats up

what's happening with you?

also lookup:
word up
sup
wizzup

hey, whats up?

whats up by actionsketch November 26, 2003

Whats Up

How people who are too lazy to add a single apostrophe to a word, spell the phrase, "What's up?" (What-is-up?).

Man: Hey man! Whats up! I'm so lazy that I decided to leave the apostrophe out of "what's", that way I can conserve more energy. You know, because I oppose global warming and all that.

Whats Up by Hold My Umbrella June 15, 2011

whats up

term used when you did something badass

after slapping a bitch thats "whats up"

klucthing it

whats up by benjijuice18 July 26, 2009

Whats up? 

What is happEnig friend

what is going on friend?

Whats up? by Kevin December 4, 2003

Whats up

Something you say to someone who looks sad or troubled

Hey whats up, u don't look like your happy self

Whats up by 20104u January 14, 2010